Posts Tagged ‘Vitamin K’
Vitamin K or Phytomenadione
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Vitamin K has many properties or phytomenadione but notable for its preventive action of internal bleeding and care of the bones.
There are 3 kinds of vitamin K: K1, K2 and K3.
Like vitamins (A, D and E), vitamin K requires the absorption of fat and bile to be absorbed properly. Briefly stored in the liver and excreted quickly.
Both acids and antioxidants such as ultraviolet light and destroy vitamin K. But resisting the cooking and storage.
Benefits of vitamin K or Phytomenadione
It is primarily useful for blood clotting.
Their action prevents internal bleeding. Assists in bone metabolism. When calcium binds to another protein, vitamin K influences according to their levels in the coagulation, mineralization and calcium reabsorption by the kidney.
In osteoporosis treatments can add vitamin K.
Symptoms of vitamin K deficiency or Phytomenadione
The deficit is measured by the level of pro thrombin in blood as it depends solely on vitamin K.
There is usually normal except for vitamin K deficiency in newborns, since no bacterial synthesis in the gut and has no hepatic reserve, or people who do not have a good intestinal absorption of fats, bile failure or misuse liver .
Consumption of certain antibiotics (such as anticoagulants and anticonvulsants) and sulfa drugs anti vitamins and cause inhibition of vitamin K.
The symptoms are the internal and external bleeding and capillary fragility with red spots. Read the rest of this entry »
Vitamin K in Food

As already indicated, vitamin K is found mainly in green vegetables such as spinach or cabbage, but also appears to a lesser extent, in virtually all plants.
Vitamin K, like fat-soluble vitamin that is going to oils such as olive oil, but is largely lost, like other fat-soluble vitamins during the refining process, with the difference that in this case Contrary to what happens with vitamin E, it is added back.
In foods that contain vitamin K is relatively stable. Perfectly withstand heat treatments, although it can be degraded by photochemical oxidation. In some cases, the structure of naphthoquinone can be reduced to form hydroquinone, but this change is reversible and preserves the vitamins.
Usually it is assumed that under normal conditions, intestinal bacteria provided the vast majority of vitamin K, to 90% from that in the body. However, these figures have been revised, so it is considered that their contribution is the order of 50%, but in any case, enough to cover needs in normal situations.
Vitamin K deficiency in humans is very rare. It can occur in newborns, by the combination of three factors, low reserves, low content of human milk and limited bacterial flora. In some countries, all newborns receive a dose of 1 mg of this vitamin. In adults, you may receive a deficiency of this vitamin by the combination of a diet low in severe treatments with antibiotics.